P Nielsen

Summary

Affiliation: University of Hamburg
Country: Germany

Publications

  1. ncbi Bioavailability of oral iron drugs as judged by a 59Fe-whole-body counting technique in patients with iron deficiency anaemia. Therapeutic efficacy of iron(II)-glycine sulfate
    Peter Nielsen
    Institut für Biochemie und Molekularbiologie II Molekulare Zellbiologie, Zentrum für Experimentelle Medizin, Universitatsklinikum Hamburg Eppendorf, Germany
    Arzneimittelforschung 55:376-81. 2005
  2. ncbi Effective treatment of hereditary haemochromatosis with desferrioxamine in selected cases
    Peter Nielsen
    Institut Molekulare Zellbiologie, Universitatsklinikum Hamburg Eppendorf, Hamburg, Germany
    Br J Haematol 123:952-3. 2003
  3. ncbi Iron supplementation in athletes. Current recommendations
    P Nielsen
    Abteilung Medizinische Biochemie, Universitats Krankenhaus Eppendorf, Hamburg, Germany
    Sports Med 26:207-16. 1998
  4. ncbi [SQUID-biosusceptometry in iron overloaded patients with hematologic diseases]
    P Nielsen
    Klinik fur Kinder und Jugendmedizin, Universitatsklinikum Hamburg Eppendorf, Germany
    Klin Padiatr 214:218-22. 2002
  5. ncbi Non-invasive liver iron quantification by SQUID-biosusceptometry and serum ferritin iron as new diagnostic parameters in hereditary hemochromatosis
    Peter Nielsen
    Inst Molekulare Zellbiologie, Universitatsklinikum Hamburg Eppendorf, Hamburg, Germany
    Blood Cells Mol Dis 29:451-8. 2002
  6. ncbi Assessment of iron stores in children with transfusion siderosis by biomagnetic liver susceptometry
    R Fischer
    Abteilung Medizinische Biochemie, University Hospital Eppendorf, Hamburg, Germany
    Am J Hematol 60:289-99. 1999
  7. ncbi Bioavailability of iron and cyanide from 59Fe- and 14C-labelled hexacyanoferrates(II) in rats
    P Nielsen
    Abteilung Medizinische Biochemie, , Hamburg, Bundesrepublik Deutschland
    Z Naturforsch C 45:681-90. 1990
  8. ncbi Interaction of artificial metallic objects with biosusceptometric measurements
    R Engelhardt
    University Hospital Hamburg Eppendorf, Germany
    Neurol Clin Neurophysiol 2004:32. 2004
  9. ncbi Impaired plasma antioxidative defense and increased nontransferrin-bound iron during high-dose chemotherapy and radiochemotherapy preceding bone marrow transplantation
    M Dürken
    Department of Pediatric Hematology and Oncology, University of Hamburg, Hamburg, Germany
    Free Radic Biol Med 28:887-94. 2000
  10. ncbi Non-transferrin-bound iron during blood transfusion cycles in beta-thalassemia major
    Regine Grosse
    University Medical Center Hamburg Eppendorf, Department of Pediatric Hematology Oncology, Martinistr 52, Hamburg D 20246, Germany
    Ann N Y Acad Sci 1054:429-32. 2005

Collaborators

Detail Information

Publications20

  1. ncbi Bioavailability of oral iron drugs as judged by a 59Fe-whole-body counting technique in patients with iron deficiency anaemia. Therapeutic efficacy of iron(II)-glycine sulfate
    Peter Nielsen
    Institut für Biochemie und Molekularbiologie II Molekulare Zellbiologie, Zentrum für Experimentelle Medizin, Universitatsklinikum Hamburg Eppendorf, Germany
    Arzneimittelforschung 55:376-81. 2005
    ..7 +/- 1.7 to 12.1 +/- 1.8 g/dl). FSD has therefore documented a bioavailability of at least 11% from a single daily dose of 100 mg Fe and was effective in the treatment of the anaemia in almost all patients under study...
  2. ncbi Effective treatment of hereditary haemochromatosis with desferrioxamine in selected cases
    Peter Nielsen
    Institut Molekulare Zellbiologie, Universitatsklinikum Hamburg Eppendorf, Hamburg, Germany
    Br J Haematol 123:952-3. 2003
    ..9 or 14.3 mg/d respectively) with weekly 500-ml blood removals. This demonstrates that DFO is an effective alternative therapy for haemochromatosis when phlebotomy is not possible...
  3. ncbi Iron supplementation in athletes. Current recommendations
    P Nielsen
    Abteilung Medizinische Biochemie, Universitats Krankenhaus Eppendorf, Hamburg, Germany
    Sports Med 26:207-16. 1998
    ..Secondly, the nonspecific upregulation of intestinal metal ion absorption is reverted to normal, thus limiting the hyperabsorption of potentially toxic lead and cadmium even in individuals with mild iron deficiency...
  4. ncbi [SQUID-biosusceptometry in iron overloaded patients with hematologic diseases]
    P Nielsen
    Klinik fur Kinder und Jugendmedizin, Universitatsklinikum Hamburg Eppendorf, Germany
    Klin Padiatr 214:218-22. 2002
    ..Basis of the adequate treatment are appropriate diagnostic parameters which are capable to monitor the range of the individual iron burden...
  5. ncbi Non-invasive liver iron quantification by SQUID-biosusceptometry and serum ferritin iron as new diagnostic parameters in hereditary hemochromatosis
    Peter Nielsen
    Inst Molekulare Zellbiologie, Universitatsklinikum Hamburg Eppendorf, Hamburg, Germany
    Blood Cells Mol Dis 29:451-8. 2002
    ..Only patients with liver cell damage had increased ferritin iron saturations. In conclusion the diagnostic values of serum ferritin protein and iron to assess iron overload are limited...
  6. ncbi Assessment of iron stores in children with transfusion siderosis by biomagnetic liver susceptometry
    R Fischer
    Abteilung Medizinische Biochemie, University Hospital Eppendorf, Hamburg, Germany
    Am J Hematol 60:289-99. 1999
    ..The exponential decline of iron stores allows forecast of steady-state conditions of the final iron load for a particular transfusion and chelation therapy regimen...
  7. ncbi Bioavailability of iron and cyanide from 59Fe- and 14C-labelled hexacyanoferrates(II) in rats
    P Nielsen
    Abteilung Medizinische Biochemie, , Hamburg, Bundesrepublik Deutschland
    Z Naturforsch C 45:681-90. 1990
    ..In the case of a severe nuclear accident, appropriate doses of "soluble" and "insoluble" Prussian blue can be used as safe and effective antidote against radiocaesium contamination...
  8. ncbi Interaction of artificial metallic objects with biosusceptometric measurements
    R Engelhardt
    University Hospital Hamburg Eppendorf, Germany
    Neurol Clin Neurophysiol 2004:32. 2004
    ..Depending on the Ni-content, these objects reveal ferromagnetic properties and contribute in first order with a one parameter reciprocal distance function to the measured liver iron signal...
  9. ncbi Impaired plasma antioxidative defense and increased nontransferrin-bound iron during high-dose chemotherapy and radiochemotherapy preceding bone marrow transplantation
    M Dürken
    Department of Pediatric Hematology and Oncology, University of Hamburg, Hamburg, Germany
    Free Radic Biol Med 28:887-94. 2000
    ..05). Antioxidants only partially recovered to baseline values until day 14 after BMT. Our findings indicate oxidative stress after high-dose radiochemotherapy and suggest a contribution of NTBI therein...
  10. ncbi Non-transferrin-bound iron during blood transfusion cycles in beta-thalassemia major
    Regine Grosse
    University Medical Center Hamburg Eppendorf, Department of Pediatric Hematology Oncology, Martinistr 52, Hamburg D 20246, Germany
    Ann N Y Acad Sci 1054:429-32. 2005
    ..The largest variation of NTBI levels between individual patients was observed at midcycle. For long-term monitoring of NTBI levels, a particular time point relative to the last blood transfusion should be selected for blood drawing...
  11. ncbi Monitoring long-term efficacy of iron chelation treatment with biomagnetic liver susceptometry
    Roland Fischer
    University Medical Center Hamburg Eppendorf, Department of Molecular Cell Biology, Hamburg, Germany
    Ann N Y Acad Sci 1054:350-7. 2005
    ..Because liver iron measurements by biosusceptometry are now regularly available in Europe and America, as well as quantitative MRI worldwide, these methods may be used to adjust chelation treatment regimens to body iron stores...
  12. ncbi Monitoring long-term efficacy of iron chelation therapy by deferiprone and desferrioxamine in patients with beta-thalassaemia major: application of SQUID biomagnetic liver susceptometry
    Roland Fischer
    Institut für Molekulare Zellbiologie, Universitatsklinikum Hamburg Eppendorf, Germany
    Br J Haematol 121:938-48. 2003
    ..A two-compartment model may predict an average chelation efficacy for desferrioxamine and deferiprone, with a saturation effect of the latter, for a certain chelation and transfusion regimen by a single liver iron quantification...
  13. ncbi Nuclear iron deposits in hepatocytes of iron-loaded HFE-knock-out mice: a morphometric and immunocytochemical analysis
    Björn Magens
    Institute of Anatomy II Experimental Morphology, University Hospital Hamburg Eppendorf, Martinistrasse 52, Hamburg 20246, Germany
    Acta Histochem 107:57-65. 2005
    ..As the nuclear iron deposits corresponded electron microscopically to aggregated ferritin molecules, they represent a non-immunoreactive form of presumably denatured ferritin...
  14. ncbi Serum ferritin underestimates liver iron concentration in transfusion independent thalassemia patients as compared to regularly transfused thalassemia and sickle cell patients
    Zahra Pakbaz
    Children s Hospital and Research Center Oakland, Oakland, California 94609, USA, and University Medical Center Hamburg Eppendorf, Hamburg, Germany
    Pediatr Blood Cancer 49:329-32. 2007
    ..32, 0.87, and 1.2, respectively: P<0.001). Due to underestimation of LIC by ferritin levels, chelation treatment may be delayed or misdirected in patients with thalassemia intermedia...
  15. ncbi Low dose-ethanol modulates toxic effect of iron-overloading in the liver
    Sven Christoph Beutelspacher
    Department of Immunology, Imperial College London, Hammersmith Hospital, 10th Floor, Du Cane Road, London W12 0NN, UK
    J Nutr Sci Vitaminol (Tokyo) 50:78-86. 2004
    ..An additive effect of toxicity of iron and ethanol was assumed. In this study, we examined nutritively iron-loaded Wistar rats (n = 59) (TMH-Ferrocene) additionally fed with ethanol up to 8% in drinking water for 36 wk...
  16. ncbi The influence of deferiprone (L1) and deferoxamine on iron and essential element tissue level and parameters of oxidative status in dietary iron-loaded mice
    Vladislav Eybl
    Department of Pharmacology and Toxicology, Charles University Faculty of Medicine in Pilsen, Karlovarska 48, 301 66 Pilsen, Czech Republic
    Toxicol Lett 128:169-75. 2002
    ..The glutathione peroxidase (GSH-Px) activity and catalase activity were not affected by iron loading, however, both DFO and L1 caused a decrease of GSH-Px activity...
  17. ncbi Does liver biopsy overestimate liver iron concentration?
    Roland Fischer
    Blood 108:1775-6; author reply 1776. 2006
  18. ncbi Does liver biopsy overestimate liver iron concentration?
    Roland Fischer
    Blood 108:778. 2006
  19. ncbi Oxidative stress precedes peak systemic inflammatory response in pediatric patients undergoing cardiopulmonary bypass operation
    Stephan Christen
    Institute for Infectious Diseases, University of Berne, Friedbuehlstrasse 51, CH 3010 Berne, Switzerland
    Free Radic Biol Med 38:1323-32. 2005
    ..g., off-pump surgery) or the resultant oxidative stress (e.g., antioxidant treatment) should be considered as possible strategies to lower the rate of postoperative complications in pediatric CPB...
  20. ncbi Non-transferrin-bound iron in plasma following administration of oral iron drugs
    Bernd Dresow
    Inst für Biochemie und Molekularbiologie II Molekulare Zellbiologie, Zentrum für Experimentelle Medizin Universitätsklinikum Hamburg Eppendorf, Hamburg, Germany
    Biometals 21:273-6. 2008
    ..Smaller iron dosages (10 and 30 mg) gave lower but still measurable NTBI values. The physiological relevance of this finding for patients under iron medication has to be elucidated...